Engine crankcase closure-adapter device



FIG. 1 is a perspective view of an exemplary embodiment of an engine crankcase closure-adapter enclosure device;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a back view thereof.

The broken line showing of portions of an engine crankcase closure-adapter device is included for the purpose of illustrating environmental structure and forms no part of the claimed design. 

The ornamental design for an engine crankcase closure-adapter device, as shown and described. 